A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5999-00-941-6522
NSN 2925-00-146-0179
NSN 5996-01-087-3961
NSN 5930-01-500-2349
NSN 6320-01-006-6138
NSN 6130-01-327-7159
NSN 5998-01-601-4761
NSN 5985-00-520-1032
NSN 2925-01-389-6874
NSN 5930-01-191-6042
NSN 5910-01-174-3668
NSN 5960-00-834-0571